Articles | Volume 19, issue 21
Atmos. Chem. Phys., 19, 13383–13407, 2019
Atmos. Chem. Phys., 19, 13383–13407, 2019
Research article
30 Oct 2019
Research article | 30 Oct 2019

Relative-humidity-dependent organic aerosol thermodynamics via an efficient reduced-complexity model

Kyle Gorkowski et al.

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Short summary
We present the new Binary Activity Thermodynamics (BAT) model, which is a water-sensitive reduced-complexity organic aerosol thermodynamics model. It can use bulk properties like O : C, molar mass, and RH to predict organic activity coefficients and water uptake behavior. We show applications in RH-dependent organic co-condensation, liquid–liquid phase separation, and Kohler curve predictions, and we validate the BAT model against laboratory measurements.
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